Whichofthefollowingstatementscanbestbeinferredfromthepassage?
A.Fishesonly"speak"tocommunicatewitheachother.
B.Researchesarenowbeingmadetostudythesignificanceoffishsounds.
C.Seaanimalshaveasharperhearingabilitythanmen.
D.Soundsmadebyfishcannotbetr ansmittedthroughtheair.
正确答案：B答案为B。根据第一段第二至第五句，Actually，theirtalkmaybeasmeaningfulasmuchofourown．Forexample，someseaanimalsusetheir "voices"tolocatetheirfoodintheoceanexpanses；othersusetheir"voices"tolettheirfellowsknowoftheirlocations；andstillothers，asameansofobtainingmates．Sometimes,"speaking"mayevenmeanthedifferencebetweenlifeanddeathtoaseaanimal．Itappearsinsomecasesthatwhenapredatorapproaches，thepreydependsonnomorethanthesoundsitmakestoescape作出该项选择。选项A中only不确切；选择C和D在文中都没提到。
